40.1⋅g

Solution:

1. Formula =Ca(NO3)2.
2. Molar mass Ca=40.08g/mol.
3. Molar mass N=14.01g/mol.
4. Molar mass O=16.00g/mol.

277.949 g/mol

Permanganate | MnO4- – PubChem.

KMnO4 is neither acid or base. But Potassium permanganate is a salt of permanganic acid. It is a salt of a strong base and a strong acid .

Potassium permanganate can be fatal if ingested orally due to local inflammatory reactions that block the airways or cause perforations of the gastrointestinal tract. It can also cause death through toxicity and organ failure.

Potassium Permanganate is a flexible and potent oxidant which can be used by overt or indirect titration to classify many compounds. Since the function of the indicator is to detect endpoints, a separate indicator for permanganate titration is not needed. …

Hydrogen peroxide + vinegar While these two chemicals can be used in succession as a cleaning duo, do not mix them together. “Combining these two creates peracetic acid or corrosive acid, an irritant that, in high concentrations, can harm the skin, eyes, throat, nose, and lungs,” says Bock.

The mixing procedure is an exothermic reaction that can reach temperatures of 100⁰C or higher. The reaction of hydrogen peroxide on concentrated sulfuric acid produces highly activated and oxidizing peroxymonosulfuric acid (H2SO5), also called Caro’s acid [1].

This means it is volume/ volume or v/ v. Therefore, the statement ’30 % solution of H2O2 is marketed as ‘100 volume’ hydrogen peroxide’ is correct as 30 % solution of H2O2 means 30 grams of hydrogen peroxide present in 100 mL of the solution. Also, 1 millilitre of 30 % H2O2 will give 100 mL of oxygen at STP.

redox reaction

Sulphuric Acid (H2SO4) is used in the redox titration process because it provides the H(+) ions necessary for the reaction to occur more quickly whilst the sulphate(-) ions barely react during the reaction. Therefore, sulfuric acid is added to make the solution acidic.